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Pentaho Data Integration 4 Cookbook

You're reading from   Pentaho Data Integration 4 Cookbook Over 70 recipes to solve ETL problems using Pentaho Kettle

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Product type Paperback
Published in Jun 2011
Publisher Packt
ISBN-13 9781849515245
Length 352 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (17) Chapters Close

Pentaho Data Integration 4 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Working with Databases FREE CHAPTER 2. Reading and Writing Files 3. Manipulating XML Structures 4. File Management 5. Looking for Data 6. Understanding Data Flows 7. Executing and Reusing Jobs and Transformations 8. Integrating Kettle and the Pentaho Suite 9. Getting the Most Out of Kettle Data Structures Index

Executing a job or a transformation by setting static arguments and parameters


When you develop a transformation which reads command-line arguments or defines named parameters, you usually intend to call it more than once with different values for those parameters or arguments. If you know the values beforehand, then there is an easy way to call the transformation, as you will see in this recipe.

Suppose that you want to create the following three files:

  1. First file: Numbers from 1 to 10, incrementing by 1, as in 0, 1,..., 10.

  2. Second file: Numbers from 0 to 100, incrementing by 20, as in 0, 20, 40,..., 100.

  3. Third file: Numbers from 100 to 500, incrementing by 100, as in 100, 200,.., 500.

You have a transformation that generates sequences like these. You just have to call it three times with the proper arguments and parameters.

Getting ready

You need the sample transformation that generates a file with a sequence described in the introduction.

Make sure you have defined the variable ${OUTPUT_FOLDER...

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